/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.myfaces.custom.aliasbean;
  
  import org.apache.myfaces.shared_tomahawk.taglib.UIComponentTagBase;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import javax.servlet.jsp.JspException;
  import javax.faces.component.UIComponent;
  
  /**
   * @author Sylvain Vieujot (latest modification by $Author: grantsmith $)
   * @version $Revision: 472630 $ $Date: 2006-11-08 15:40:03 -0500 (Wed, 08 Nov 2006) $
   */
  public class AliasBeansScopeTag extends UIComponentTagBase
  {
      private Log log = LogFactory.getLog(AliasBeansScopeTag.class);
  
      public String getComponentType()
      {
          return AliasBeansScope.COMPONENT_TYPE;
      }
  
      public String getRendererType()
      {
          return null;
      }
  
  
      public int doStartTag() throws JspException
      {
          int retVal = super.doStartTag();
  
          UIComponent comp = getComponentInstance();
  
          if(comp instanceof AliasBeansScope)
          {
              ((AliasBeansScope) comp).makeAliases(getFacesContext());
          }
          else
          {
              log.warn("associated component is no aliasBeansScope");
          }
  
          return retVal;
      }
  
      public int doEndTag() throws JspException
      {
          UIComponent comp = getComponentInstance();
  
          if(comp instanceof AliasBeansScope)
          {
              ((AliasBeansScope) comp).removeAliases(getFacesContext());
          }
          else
          {
              log.warn("associated component is no aliasBeansScope");
          }
  
          return super.doEndTag();
      }
  
  }